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| author | Tejun Heo <tj@kernel.org> | 2015-02-13 14:37:28 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 21:21:37 -0800 |
| commit | 333470ee46b6851477dc9392eb71ba8ffa4f3387 (patch) | |
| tree | a66ef9a7c1990fdca9a40051a852211c27ceaf24 /kernel/sched/stats.c | |
| parent | ad853b48cb4650285e8544eebbba5bbd9274ee15 (diff) | |
| download | linux-333470ee46b6851477dc9392eb71ba8ffa4f3387.tar.gz | |
sched: use %*pb[l] to print bitmaps including cpumasks and nodemasks
printk and friends can now format bitmaps using '%*pb[l]'. cpumask and nodemask also provide cpumask_pr_args() and nodemask_pr_args() respectively which can be used to generate the two printf arguments necessary to format the specified cpu/nodemask. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sched/stats.c')
| -rw-r--r-- | kernel/sched/stats.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c index a476bea17fbc..87e2c9f0c33e 100644 --- a/kernel/sched/stats.c +++ b/kernel/sched/stats.c @@ -15,11 +15,6 @@ static int show_schedstat(struct seq_file *seq, void *v) { int cpu; - int mask_len = DIV_ROUND_UP(NR_CPUS, 32) * 9; - char *mask_str = kmalloc(mask_len, GFP_KERNEL); - - if (mask_str == NULL) - return -ENOMEM; if (v == (void *)1) { seq_printf(seq, "version %d\n", SCHEDSTAT_VERSION); @@ -50,9 +45,8 @@ static int show_schedstat(struct seq_file *seq, void *v) for_each_domain(cpu, sd) { enum cpu_idle_type itype; - cpumask_scnprintf(mask_str, mask_len, - sched_domain_span(sd)); - seq_printf(seq, "domain%d %s", dcount++, mask_str); + seq_printf(seq, "domain%d %*pb", dcount++, + cpumask_pr_args(sched_domain_span(sd))); for (itype = CPU_IDLE; itype < CPU_MAX_IDLE_TYPES; itype++) { seq_printf(seq, " %u %u %u %u %u %u %u %u", @@ -76,7 +70,6 @@ static int show_schedstat(struct seq_file *seq, void *v) rcu_read_unlock(); #endif } - kfree(mask_str); return 0; } |